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Posted in response to blue obsidian is ther such a thing? from stephanie on October 11, 2007 at 21:18:54:

Re: blue obsidian is ther such a thing?

I am not aware of any obsidian that is blue. There is, however, a lot of slag from smelters that is blue. I suspect that what you have is slag. I hope you didn't pay too much for it. Even so, a piece of slag can be attractive, sitting on a desk or shelf.

From Don Peck - October 12, 2007 at 11:03:48

Message: 65147

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